Tube-threading machine



E. TYMESON.

TUBE THBEADING MACHINE.

APPLICATION FILED NOV.26. 191s.

Patented Dec. 28, 1920.

6 SHEETSSHEEI I.

E, TYMESON. TUBE THREADING MACHINE. APPLICATION FILED NOV. 26,1913-Patented Dec. 28, 1920.

E. TYMESUN.

TUBE THREADING MACHINE. APPLICATION man NOV. 26, l9l3.

Patented Dec. 28,1920.

a SHEETSQSHEEI a.

E. TYMESON.

TUBE THREADING MACHINE.

APPLICATION FILED NOV. 26, 1913.

6 SHEETS-SHEEI 4.

E; TYMESON.

TUBE THREADING MACHINE.

APPLICATION FILED NOV. 26, 1913.

Patented Dec. 28, 1920.

GSHEETS-SHEEI e.

UNITE STA'ILQS OFFICE.

EUGENE TY IVIESON, 0F YONKERS, NEW YORK, ASSIGNOR TO ALEXANDER SMITH 82;

V SONS CAR-PET COMPANY, A. CORPORATION OF NEN YORK.

TUBE-TI-IBEADING MACHINE.

Application filed November 26, 1913.

To aZZ whom it may concern:

Be it known that I, EUGENE TYMnsoN, a citizen of the United States,residing at Yonkers, county of WVestchester. and State of New York, haveinvented certain new and useful Improvements in Tube-Threading of loomtube frame such as used in looms for weaving Axminster or similarcarpets or rugs, the especial object of the invention bemg to providean. eflicient machine for this purpose, in which the tuft yarns shall bethreaded by being pushed through from the spool or larger ends of thetubes, instead of by passing hooks through the outer or smaller ends ofthe tubes and drawing the tuft yarns through the tubes on the return ofthe hooks.

The broader features of the invention relate to the general organizationof the machine for threading the tuft yarns by pushing them through thetubes, including the means for engaging the tuft yarns at the spool endsof the tubes and pushing them through the tubes, with the tube frameproperly supported and the tuft yarns positioned for the engagement ofthe threading means.

The invention includes also means for combing or bushing out the yarnends they are threaded through the tubes and before trimming, means forletting-off the yarn on the spool side of the threading means to providethe length required for threading through the tubes, an improved combfor holding the yarn ends separated on the spool and during threading,and various features of construction and combinations of parts,preferably applied in machines ernbodying the general features of theinvention, but which may be used also in machines employing othermethods of threading the tuft yarns through the tubes;

In the accompanying drawings forming a part of this specification, thereis shown a tube threading machine of the preferred Specification ofLetters Patent.

Patented Dec. 23, 1920.

Serial No. 803,112.

form embodying all the features of the invention, and a modified form oflet-off device, and this construction will now be described in detail,and the features forming the invention then specifically pointed out inthe claims.

In the drawings: Figure 1 1s a side elevation of the ma,-

chine, with the frame broken away to show the clamp release rod;

F 2 is a front elevation of the machine, with the yarn ends broken awayto show the parts;

Fig. 3 is a vertical section inside the frame and looking to the left inFig. 2;

Fig. 4 is a horizontal section on the line 4& of Fig. 2;

Fig. 5 is adetail sectional elevation of a portion of the clutch trip;

Fig. 6 is a horizontal section on the line 6-6 of Fig. 5;

Figs. 7, 8, 9 and 10 are detail vertical sections showing successivepositions of the parts in threading the tubes;

Figs. 11 to 14: are views illustrating the sidewise movement of theneedles for engaging the yarns in threading, Figs. 11 and 12 being frontelevations showing successive positions of the needl s, and Figs. and1.4L plan views with the needles in. section and corresponding,respectively, to Figs. 11 and 12 in positions of parts;

Fig. '15 is a vertical section looking in the same direction as Fig. 3,and showing a different form of let-off device Fig. 16 isa plan view ofFig. 15; and

Fig. 17 is a detail section on the line 1717 of Fig. 15;

Referring now especially to the construc tion shown in Figs. lto i i, Ais the frame of the machine, shown as an open frame formed of verticalend standards and horizontal. tie-bars, and B the needle frame mountedto slide vertically in frame A. This needle frame B consists ofverticalend bars 11 sliding inguides l0 on'the front the lower side of bar 12,and spring pressed to the left in Fig. 2 by spring 1 1 connected to bars12, 13. -The needle frame 13 is moved vertically by levers'16 mounted inthe rear standards A and connected to the needle frame bylinks 17, theselevers 16 being re ciprocated 've'rtically'through links 18 and threadthe tubes and-return the needles, and

the-needle bar- 13 and needles a move sidewise in the frame B to engagetheyarns on the downward movement of the needles. The "sidewiseamovementof the needle bar 13 and. needles :isrcontrolled' and their properposition assured byadjustable stops 29 at oppositeisides of theframe.The needles a .zpreferably are guided throughout their movem'ent by ayielding needle guide 6, spring pressed downward by spring 30, andcarried by rods:31;passingfreely through bars 12,. 13, and free to movesidewise with needle bar 13 and needles a -in-slots 32 inbarr12,the-downward movement of guide I) being limited by Steps 33. Theneedles a in thejpreferredzform.shown, are thin plates arranged flatwiseto each other across the .mach'ine,and 'passing through guide open-"ings'or -slots. in guidebar. 6, these needles, as

shown clearly .-.-in: Figs. 3. and 7 to 10, being formed with .a':head'slotted vertically to form a forlrwith long: and short prongs 1,2, so that the needle "prongsal ,may pass between .the-ya-rnsandigtheniby relative-sidewise movement of the needles and yarns, the

yarns be engaged between the prongs 1, 2, as 46;

the needles continue their downwardmovement. I t I 1 .Belowtheneedles'ais the support for the tube/ frame 0, shown as of the: common. formhavlng the usual tubes (5; the support con sisting of a bar Mon whichthewtube' iframe c sits, withathetubeslying on the front of the bar, anda rocking clamp bar 35 in front of the tubes whichis pivoted to rockrearward against the front sides of-thetubes to away from the tubesfor-insertion and reclamp them in place and rock forward i f moval ofthe tubeframe, this tube clamp 35 being shown as operated by handle 36.Piv-' f OtGd onthe top of. tube clamp '35 is a plate.

formingn yarnclamp 37 which is pressed rearward by springs :38 "to clampthe yarns and. pressed forward against. the springsv out .ofsclampingpositionand-out ofQthe path of I therneedles a h 1... rod 39.nsliding.in aaguide able I manner.

on bar 34 and operated by cam arm 40 onrock shaft 41 and cam 42. Thetube clamp 35 carries also the comb e by which the free ends of the yarnare held separatedand in proper position for threading, this comb 6being set into grooves in supports on the top of'the tube clamp, andspring pressed endwise to hold it in position by a' suitable springpressed slide 3 at one end.

T he means for holding the free'ends of the yarn be varied, but the combshown is preferably used and embodies certain novel features which forma part of the present invention. The comb has inclined yarnholding slots.4 and shoulders '5 forming hooks overhanging the inclined slots so thatthe yarn ends maynot be drawn from the comb directly upward in the slotdirection, but must be movedsidewise to release them from the hooks 5,the upper surface of the teeth being preferably inclined, as shown, soas to guide theyarnends into the slots 1 in threading thecomb. The combis preferably formed of a piece of sheet metal bent into a loop to formthe base of the teeth, but this base may be formed in any other suitthiscomb is laced noon the arns in beaming by passing the comb over theyarnsor moving the yarns sldewise lnto the comb,

and then the comb is tiedto the spool and acts to hold the yarnends-separate and in properposition before and during threadmg. V r

The yarn spools f, carrying the yarns 00 may be and are shown as of thecommon construction. In the tube threader, these spools are carried byclamping heads 4%, one-of which is spring pressed so as to; yield .forthe. insertion and withdrawal of the spool, and'these clamping.headsetare carried by studs 45, free to be rotated with the spool byfinger piece 46 on one of the studs, the .spoolbeing heldragainstunwinding rotation by ratchet 17 on one of the clamping heads andpivoted pawltS, which may be released by hand. The clamping heads 4 1 inthe. constructionnow bein described, are

.mounted in arms 4E9 on rock shaft 50 so as to swingtoward; and. fromthe path of the needles a, this rock shaft-50 being actuated by arin 51connectedb ylink 52to cam lever 53 operatedby cam 54c'against leverreturn spring 55,. to movethe spool forward from the position. shown infull lines'inFig. 3 to that'shown in dottedlines, the. spool preferablybeing returnedby handat the proper time and .held. in normal. position.by spring catch. 56. taking over.pin 57: on one ofthe arms 49, thiscatch 56' yielding against the operating pressure whenithe arms areswung .jforward by. cam 54.

Below the. tube support and tubes are m ounted. .the. cutting Mdevices.for..;trimming It will. be understood that 011' the yarn ends afterthreading through the tubes, and combing or brushing devices forstraightening out the yarn ends, these combing or brushing devicespreferably acting also to hold the yarn ends during the withdrawal ofthe needles a and thus avoid all danger of the yarn ends being withdrawnwith the needles.

Two knives h, z are shown for trimming ofi the yarn ends, knife it beingcarried by lever knife bar 58 mounted in arms 59 on rock shaft 60actuated by arm 61 connected by link 62 to cam lever 63 operated by cam64 against lever returning spring 65. The other knife, 2', is shown ascarried by knife head 66 sliding in guides on the frame and connected bylink 67 to cam lever 68 operated against returning springs 69 by cams70. The rock shaft 60, carrying knife head 58, is preferably carried onadjustable slide bars 71 on frame bars A, and the guides for knife zmade adjustable, so that the proper position and action of the knivesmay be secured.

The devices for combing or brushing out the yarn ends and holding themduring the withdrawal of the needles, are preferably in the form ofbrushes, and in the construction shown, brushes 7c are arranged onopposite sides of the needle path and carried by brush heads 7 2 in arms73 swinging on shaft 7 1, and this shaft 74 is mounted to rise and fallso as to move the brushes upward and downward between the ositions shownin full and dotted lines in *ig. 9, thus combing or brushing out theyarn ends. The shaft 74 is carried in arms 75 on rock shaft 7 6, whichis rocked by cam arm 77 andcam 78 to raise the shaft 74 and brushesagainst the tension of spring 79, which spring lowers the shaft onrelease by the cam. The arms 73, carrying the brushes in, are rocked inopposite directions to move the brushes together and separate them inproper time, as follows: The front brush arms 73 are connected by link80 to cam lever 81 operated by cam 82 and returned by a spring (notshown). The rear brush arms 73 are operated by similar means, consistingof link 84, earn lever 85, cam 86, and a spring (not shown).

Any suitable driving and controlling devices may be used. As shown, thecam shaft 21 is driven through gear 88, pinion 89 and gear 90 frompinion 91 on driving shaft S, and this driving shaft S is driven by afriction clutch consisting of clutch member 92 onshaft S and drivingpulley 93 splined on the shaft. Pulley 93 is thrown in'and out forclutching and releasing shaft S by clutch lever 94:, and a brake 95 ispreferably used to stop the machine promptly when shaft S is unclutchedfrom the power, this brake shoe 95 being held against member 92 byadneedle frame.

justable stud 96 on clutch lever 9 1 when the lever is thrown intounclutching position. The clutch lever is moved by hand for operatingthe machine, and is automatically thrown into position to stop themachine at the end of one rotation of the driving shaft. For thispurpose the clutch lever 9% is connected by link 97 to arm 98 on rockshaft 99, spring pressed to unclutch the shaft S by spring 100, androcked to clutch shaft S to pulley 93 by hand lever 101 on rock shaft99. Hand lever 101 moves in slotted segment 102, this segment having ashoulder 103 inside which the handle is thrown at the end of the shaftclutching movement, and by which it is held against return until forcedoff the shoulder by a trip 10 1 carried by trip lever 105 operated inone direction by trip bar 106 and returned by spring 107 and having alocking pin 108 entering an L-shaped slot 109 in trip bar 106. Trip bar106 is connected at its lower end to lever 110 pivoted in the frontstandard A with its inner end taking over a pin 6 on one of the-sidebars 11 of the needle frame B, so that the lever is rocked vertically bythe rising needle frame B and re turned by spring 7 on the descent ofthe Trip bar 106 is spring pressed to hold pin 108 in the horizontallocking portion of slot 109 by spring 111, and trip bar 106 is movedagainst the tension of this spring to release pin 108 by cam trip 112carried by hand lever 101, as the lever returns to normal. position.

The operation of this clutch mechanism follows:

To start the machine for a tube treading operation, the hand lever 101is swung inward and held by shoulder 103 to clutch shaft S to drivingpulley and release brake 95, and the needle frame is then moveddownward. As pin 6 releases lever 110 on this needle movement, rod 106moves up ward and spring 111 moves the upper end of the rod intoposition with pin 108 in the horizontal part of slot 109, as shown inFig. 5. When the tubes have been threaded and the needles return totheir upper position, shown in Fig. 3, and the machine is to be stopped,the rocking of lever 110 by pin 6 on bar 11 draws down rod 106 and rockslever 105 and trip 104, so as to throw hand lever 101 off shoulder 1.03,and the lever 101 and shaft 99 are then returned to normal position byspring 100 and through link 9?" and lever 94 unclutch pulley 93 fromclutch member 92, and raise brake-shoe 95 into contactwith clutch member92, so as to unclutch shaft S and brake it so as to assure the promptstopping of the shaft. As lever 101 moves outward, cam 112 carriedthereby. throws link 106 inward so as to move pin 108 into the verticalportion of slot 109,

V of the machine.

:when spring 107 returns lever 105 and, trip 104 to normal position.

A. safety device is preferably provided to prevent the descent of theneedle bar B, except at the proper time, and thus avoid all danger ofinjury to the operator in inserting and removing spools. The safetydevice shown consists of a stop 113 pivoted at 114 and having anvarm 115spring pressed by spring 116 to throw the stop into position beneath bar12 and rocked to withdraw stop 113 by slotted bar 117 having a slotreceiving a pin on arm 115, the slot being formed with a shouldernormally engaging the pin so as to rock shaft 114 and withdraw stop 113when lever 101 is thrown inward to clutch the driving shaft S for anoperation The bar 117 has a rounded upper end in'the line of trip pin118 on bar 12, so that bar 117 :is. rocked by this pin 118 when bar 12passes it, to release the pin on arm 115 from the shoulder on bar 117and thus permit spring 116 to throw stop 113 inward, thus assuring stop113 being in position to stop. bar12 and prevent another movement of theneedle frame, even though lever 101 should not be tripped to unclutchshaft 5. Stop 113 yields against spring 116'to permit bar 12' to passon; its upward movement.

The general operation ofthe machine is as follows: r

The machine is shown in the main views, Figs. 1 to 4,'with the parts inthe position they occupy when the machine is ready for starting the tubethreading operation, the tube frame 0 and its tubes (2 and yarn spool 7being in position: for threading, with the yarn ends a; lying over thetops of the tubes and held separated by comb e.

Shafts is now clutched to pulley 93, as above described, and needleframe 13 with needle bar 13 and needles a is then moved downwardbyclosed cams 20, acting through levers-19, links 18 and levers 16, untilthe long prongs 1 of theneedle forks are passed between the yarn ends m,the needles during this movement being out of line sidewise with theirrespective tubes (has shown in Figs. 2 and 11. Needle bar 13 with itsneedles (1 then stops its downward. movement and is moved sidewise bycam 28 acting through cam lever 27, rock-shaft 26,

lever 25, link 24, and side bar 22, and the position 'to register 1 withtheirrespective tubes '(Z below them. The relative positions of theparts before andafterrsidewise move- "ment of theneedles is shownclearly in Figs.

1, 7, and 11 to 14, Figs. 1, 7, 11 and 13 showing the position of partsbefore this sidewise movement, and Figs. 12 and 14 after this sidewisemovement. 1

The downward movement of the needles is now resumed with the shortprongs 2 passing in front of the bent. yarns,-soas to engage the latterin the forks and move the yarns through the tubes, withdrawing the yarnends from the comb e. For this movement of the needles into the tubes,the yarn clamp 37 has been thrown forward from the position shown inFigs. ,1- to 4 into that shown in Figs. 7 to 10, by rod 39 actuated bylever .40. and cam 42, so as to leave the tubes uncovered for threading.As the needles move downward with the yarns w, also,

- the arms 49 are swung forward to move the spool f from the positionshown in full lines inFig. 3 to that shown in dotted lines, thus givingsuflicient slack for threading without tension. on the yarns other 1than that of drawing the yarn ends from the comb e. Spool f and arms 49,are thus moved by rock shaft 50, arm 51, link 52, lever 53 and spring 55with the movement controlled by cam 54 against which the lever bearsduring this movement, the spring catch 56 yielding to permit thismovement. The needle guide 6 moves downward with the needles to guidestops 33 and then spring 30 yields to allow the needles to pass onwardthrough the stationary guide. F 8 shows the position of parts with thethreading movement of the needles a completed. 7

The brusheslc are now raised by arm 75, rock shaft 76, arm77, and cam 78against spring 79' from the position shown in Fig. 3 until they lieonopposite sides of the yarn endS and then the brushes are closed togetherupon the yarn ends and needles by rocking arm 73 on shaft 74 by theirrespec tive links 80, 84, levers 81, 85, and cams 82, 86, so as to holdthe brushes in the position shown in full lines in Fig. 9, and thebrushes are then moved downward by spring 79 into the position shown indotted lines in Fig. 9, thus combing or brushing out the yarn ends, andthebrushes are then separated again to the position shown in Fig. 3 byrocking arms 7 3. The needles 0, preferably are moved upward out of thetubes while the brushes 7c are holding the yarns, as shown in Fig.9, sothat these brushes aid in preventing any tendency to'the withdrawal ofany of theyarnends withthe needles a.

The yarn ends having thus been combed or brushed out and the needleswithdrawn from the tubes,- the yarn ends are trimmed off to an evenlength this being done by moving the-knives h, 93 together by rockingknife arms 59 and moving knifeslide 66 by their respectlvezcams andconnections, previously described, so that the yarn ends are trimmed, asshown in Fig. 10, and the knives then immediately restored to theirnormal position, as shown in Fig. 3.

lVhen the needles have been withdrawn from the tubes d, the clamp 37,which during the threading operation has been held in the position shownin Figs. 7 to 10, by rod 39 forced forward by cam 42 acting through camlever 10, is released by cam 12 and clamp 37 is then closed by springs38 upon the yarn ends lying over the bar of spool frame 0, as shown indotted lines in Figs. 1 and 10, and in full lines in Figs. 2 to 4, so asto clamp the yarn ends upon the frame bar and hold them in positionrelatively to the tubes. Spool 7 is then rotated by hand so as to windup the slack of the yarn between clamp 37 and the spool, and bar 35 withclamp 37 is then rocked forward by handle 36 so as to release the tubeframe and yarn ends, and the spool frame and spool 7 are then removedfrom the machine and clamped together as usual to hold the tube frame onthe spool until required for use in the loom.

A new spool f with its attached comb e is now inserted between the heads1% and another tube frame 0 is placed in position on the support 34:,and the tube clamp 35 and yarn clamp 37 are swung back into tubeclamping position, and the comb e and yarn ends are put in place onclamp 35. As the spool is inserted between the heads 4 1, the arms 49with the spool supports and spool are swung backward by hand from theposition shown in dotted lines in Fig. 3 to the position shown in fulllines in that figure, the pawl 48 being raised by hand durmg thisoperation to permit the spool to turn for letting ofi yarn, and when thespool frame has reached its rearward position the pin 57 is engaged byspring catch 56 t0 held the spool frame and spool in the position shownin full lines in Fig. 3 until the next threading operation of themachine, as previously described. When the spool has been swung back andthe comb e put in place and as the slack is taken up, the pawl 13 1sdropped to hold the spool against rotation. All the parts are now in theposition shown in Fig. 3, and ready for another threading operation.

The construction andoperation of the machine as shown in Figs. 15 to 17is the same as that above described, except that these figures show amodified let-oft device for avoiding tension on the yarns duringthreading. In this construction 125 is a bar extending across themachine above the yarns and carried by arms 1.26 on rock shaft 127,controlled through arm 128 by cam 129 and by crank arm 130, link 131,treadle 132, and spring 133. Bar 125 is held in its lowered position,shown in dotted lines in Fig. 15, by locking pin 134: entering a hole135 in a lug on one of the arms 126, this pin being mounted to slide andmoved in opposite directions by rocking lever 136 spring pressed byspring 137, and rocked against the spring to release the pin 134 by triparm 138 on one of the needle bar arms 16.

The operation of this let-01f is as follows:

When the spool f with its comb e has been placed in position forthreading, the spool supports being fixed in this construction, bar 125is lowered by treadle 132 acting through link 131, arm 130, shaft 127and arms 126, from the full line to the dotted line position shown inFig. 15, and the bar is held in its lowest position by catch 1341enteringhole 135. For this operation, the yarn ends a1 have been leftslack so that no tension is put upon the yarn ends by the deseen dingbar. The spool f is then rotated so as to draw up the yarn ends into theposition shown in Fig. 15, and the spool is then held by pawl 48. lVhenthe needle frame and its operating arms 16 descend for threading, triparm 138 on one of the arms 16 engages lever 136, as shown in dottedlines in Fig. 17, and rocks it against spring 137 to withdraw pin 134%from hole 135 and release arm 126 and bar 125, and spring 133 thenreturns the bar 125 from the dotted line to ment of the bar as requiredby the thread inn movement bein secured b cam 129 acting on cam arm 128,this operation, also, restoring treadle 132 to normal position. The tubethreading operation is then the same as above described, the slack onthe yarn ends so for threading being provided by the release of the yarnloop by bar 125 instead of by swinging the spool 7 forward, as shown inFig. 3.

It will be understood that many Inodifica.- tions may be made in theform, arrangement and movement of parts shown while retaining theinvention defined by the claims, and that the machine illustrated isonly a preferred embodiment of the invention. The needles for pushingthe yarns through the tubes may be used, also, with other means forengaging the needles with the yarns. Thus, the relative sidewisemovement of the yarn and needles for bending the yarn about the longprongs of the needles, may be secured by moving the comb as in presentmachines. The needles, also, may be moved sidewise, as shown, withoutmoving the tubes, or the tube frame may move sidewise with the needles,in which case the long prongs of the needles may enter the tubes beforethe sidewise movement. The yarn may be let 05 during threading byrotating the spool or releasing it so as to permit the threadingmovement of the needles to draw OH? the yarn, or the required length ofyarn may be provided by using longer ends on the comb side of the tubes,but the constructions shown are preferred as shortening the comb endsand avoiding the pull necessary for rotating the spool to draw oil theyarn.

What is claimed is 1. In a tube threading machine, a tube frame supportandrmeans for holding the combination with needles arranged at the spoolor large ends of the tubes and acting simultaneously to thread the yarnsthrough the tubes from their spool or large ends simultaneously.

3. In a tube threading machine, a tube frame support and means forholding the yarn ends in position to be threaded, in combination withneedles moving simultaneously transversely to the yarns and engaging theyarns to loop them over the ends of the needles and then push themthrough the tubes simultaneously.

45111 a tube threading machine, a tube frame support and means forholding the yarn ends in position to be threaded, in combinationwithneedles moving simultaneously transversely to the yarns to loop themover the ends of the needles and then push them through the tubessimultaneously, and means for producing relative bodily sidewisemovementof the yarns and needles for engaging the yarns with the needles.

5. In a tube threading'machine, a tube frame support and means'forholding the yarn ends in position to be threaded, in combination withneedles moving transversely to the yarns to loop them over the ends ofthe needles and then push them through the tubes, and means for movingthe needles sidewise with the yarns for engaging the yarns with theneedles.

6. In a tube threading machine,ia tube frame support and means forholding the yarn ends in position to be threaded, in com bination withneedles at having forked heads with long and short prongsmovingsimultaneously transversely to the yarns to loop them over theends of the needles and then push themthrough the tubes simultaneously,and means for producing relative bodily sidewise movement of the yarnsand needles after the long'prongs have passed between theyarns-forrengaging the'yarns with the needles.

7. In a tube threading machine, a tube frame supportand means forholding the yarn ends in position to be threaded, in combination' withmeans for pushing the yarns through the tubes simultaneously, and meansmoving longitudinallyof the yarn for comb ing or brushing out the endsof the yarn after threading and acting to hold the yarn ends during thewithdrawal of the threading means from the tubes.

8. In a tube threading machine, a tube frame support and means.forholdingrthe yarn ends in position to be threaded, in com binationwith means for pushing the yarns through the tubes, brushes arranged onopposite sides of the threaded yarn ends, and means for moving saidbrushes together upon the yarn ends and then longitudinally of the yarnfor brushing out the ends of the yarn after threading.

9. In a tube threading machine, a tube frame support and means forholding the yarn ends inposition to be threaded, in combination withmeans for pushing the yarns through the tubes, brushes arranged onopposite sides of the threaded yarn ends, and meansfor moving saidbrushes together upon the yarn ends before withdrawal of the threadingmeans, whereby the yarn ends are held from withdrawal with the threadingmeans.

10. In a tube threading machine, a tube frame support and means forholding the yarn ends in position to be threaded, incombination withneedles moving simultaneously transversely to the yarns and engaging theyarns to loop them over the ends of the needles and then push themthrough the tubes simultaneously, and means movingrlongitudinally of theyarn ends for combing or brushing out the yarn after threading andacting to hold the yarn ends during the withdrawal of the needles fromthe tubes.

ll. In a tube threadingmachine, a tube frame support and means forholding the yarn ends in position to bethreaded, in comhi'nation withneedles arranged at the spool or large ends of the tubes and acting tothread the yarn through the tubes from the spool or large ends, brushesarranged on opposite sides of the yarn ends at the smaller ends of thetubes, and means for-moving said brushes together upon the yarn endsbefore withdrawal of thethreadingmeans bination with means for pushingthe yarns through the tubes, means for combing or brushing out the endsofthe yarn after threading, and means fortrimming oft the yarn endsafter they'are combed or brushed out.

13; In a tube threading machine, a tube frame supportand means forholding the yarn ends in position to be threaded, in

combination with means for pushing the yarns through the tubes, brushesarranged on opposite sides of the threaded yarn ends, means for movingsaid brushes together upon the yarn ends and then moving themlongitudinally of the yarn to comb or brush out the ends of the yarn,and trimming devices acting on the yarn ends between the brushes and thetubes after the brushes are moved longitudinally and separated.

i l. in a tube threading machine, a tube frame support and means forholding the yarn ends in position to be threaded, in com bination withtube threading means, and means moving longitudinally of the tubes forcombing or brushing out the ends of the yarn after threading.

In a tube threading machine, a tube frame support and means for holdingthe yarn ends in position to be threaded, in combination With tubethreading means, and means moving longitudinall of and parallel with thetubes for combing or brushing out the ends of the yarn after threadingand acting to hold the yarn ends during the withdrawal of the threadingmeans from the tubes.

l6. in a tube threading machine, a tube frame support and means forholding the yarn ends in position to be threaded, in combination withtube threading means, brushes arranged on opposite sides of the threadedyarn ends, and means for moving aid brushes together upon the yarn endsand then longitudinally of the yarn for brushing out the ends of theyarn after thread ing.

17. In a tube threading marhiue. a tube frame support and means forholding the yarn ends in position to be threaded, in rombiuation withtube threading means. means for combing or brushing out the ends of theyarn after threat and means for trim ining off the yarn ends after theyare combed or brushed out.

18. In a tube threading machine, a series of needles 0 having forkedheads formed. with long and short prongs 1, 2, in 00minnation with meansfor advancing the me dles in a straight line to move the long prongsbetween the yarns and means for then producing relative bodily sidewisemovement of the needles and yarn to bend the yarn around the long prongsand engage the yarn in the needle forks on the further movement of theneedles in the same direction as said straight line movement.

19. In a tube threading machine, a series of needles at having forkedheads formed with long and short prongs 1, 2, in combination with meansfor advancing the me dles to move the long prongs between the yarns. andmeans for then moving the needles sidewise to bend the yarn around thelong prongs and engage the yarn in the needle forks on the furthermovement of the needles.

20. In a tube threading machine, the combination with spool supportingand tube threading means, of a comb for holding the yarn ends separatedfor the action of the threading mechanism, having its yarn slotsinclined and the comb teeth formed with shoulders overhanging theinclined slots,

In a tube threading machine, the combination with spool supporting andtube threading means, of a comb for holding the yarn ends separated forthe action of the threading mechanism, having its yarn slots inclinedand its comb teeth formed with shoulders overhanging the inclined slots,and the tops of the teeth inclined to guide the yarns beneath theshoulders into the inclined slots.

22. A comb for holding the free ends of tuft yarns in carpetmanufacture, consisting of a bar adapted to be detachably secured to thespool, and having teeth constructed to form inclined yarn slots 4 andshoulders 5 overhanging the outer ends of the slots.

23. A comb for holding the free ends of tuft yarns in carpetmanufacture, consisting of a bar adapted to be detachably secured to thespool, and having teeth constructed to form inclined yarn slots 4 andshoulders 5 overhanding the outer ends of the slots, the outer ends ofthe teeth being inclined to form tapering guides directing the yarn intothe slots in placing the comb on the yarn.

In a tube threading machine, in combination with a spool support andtube threading mechanism, means for moving the spool support toward thetubes during threading to provide slack for passing the yarn endsthrough the tubes.

ln a tube threading machine, in combination with a spool support andtube threading mechanism, means for moving the spool support toward thetubes during threading to provide slack for passing the yarn endsthrough the tubes, and means for returning the spool support to normalposition after the completion of the threading operation and stoppage ofthe machine.

In a tube threading machine, the combination with a tube support andtube threading devices, spring pressed clamp 37 for holding the yarnends clamped after threading, and means for moving said clamp out of thepath of the tube threading devices for threading and releasing it forclamping the yarns.

27. 1' n a tube threading machine, thecoinbination with tube threadingdevices and operating mechanism therefor, of manually controlled meansfor startim said mechanism, and a stop in the path of the tube threadingdevice removed by the" manual operation of' thejstarting means. i

In a tube threading machine, the combination withtube threading devicesand operating mechanism therefor, of manually controlled means forstarting said mecha nism, means for stopping the machine at the end ofeach threading operation, a stop in the'path of the-tube threadingdevices re moved by the manual operation of the starting means, andmeansfor returning said stop intothe-pathof the threading devicesindependentlyof the stoppage of the ma-' chine,.whereby the operation ofthe tube threading. devices is prevented independently ofthe machineoperation.

:29. In a machine ofthe kind described, means for holdingia loom tubeframe in position to be threaded, and threading mechanism, includingdevices arranged to double the yarns back-on themselves over the endsof'the same, and means for then moving said devices and yarnssimultaneously through all the tubes from the rear or spool end. of thetubes.

30. In a machine of the kind described,

means for holding a loom tube frame in ver-' tical: position to bethreaded, means for pushing the yarns donward through the tubes of said.frame from the rear or spool ends of'the tubes toward the opposite endsof the tubes, and means for ei'igaging the yarnends beyond said oppositetube ends and stripping them into holding position by movement parallelwith the yarn while the pushers are retracted.

31. In a machine of the kind described, yarn drawing mechanism arrangedto push a complement of yarns simultaneously through the tubes of eachtube frame from the rear or spool end of the tube toward the oppositeend as successive tube frames are put in position, including means foreach tube carrying at its forward end the yarn as said end moves forwardto enter the tube at said rear or spool end of the tube, and means tocomb and clamp the free ends of the yarns by movement parallel with theyarn while the. pushing mechanism is being withdrawn from the tubes.

32. In a machine of the kind described, means for holding a loom tubeframe in position to be threaded, threading mechanism for placing theyarns in the tubes, and brushing means on opposite sides of the yarnmoving longitudinally of the tubes for brushing the free ends of saidyarns away from the threading mechanism.

33. In a machine for acting upon tuft yarns in carpet manufacture, thecombination with means to hold a series of such yarns, meansto support atube frame in relation'to the yarns to be threaded therethrough, aseries of 'pushers with means to cause relative movementbetween the sameand thetubes first to ententhe pusher's V through the large ends of thetubes and through the tubes and then to position them without: the same,said push'ers engaging the yarns 'priortoentering the large ends of thetubes, and means to cause relative bodilylateral movement/between thepushers and the yarns to insure better engagement between the same, saidyarns being carried intothe large end of the tubes simultaneously on thefirst of said positioning movements 34.11:! a' maehinefor acting upontuft yarns in carpet manufacture, the combination with means to hold aseries of said yarns, means to support a tube frame in relation to theyarns to be threaded therethrough, a series of pushers, and means tocause relative lateral bodily movement between the same and'thetubes ofthe tube frame to carry the yarn simultaneously into the large ends ofthe tubes and through the tubes and to return them to position, saidmeans acting first to position the pushers simultaneously to engage theyarns, then to position the pushers simultaneously through the largeends of the tubes and through the tubes, then to position them withoutthe tubes.

35. In a tube'threading machine, a tube frame support, a series ofpusher needles, means for holding the yarn ends distended between theneedles and the large ends of the tubes, and means to move the needlestransversely the yarns to push the latter simultaneously through thelarge ends of the tubes, the needle movement being interrupted when theneedles'are brought into position to engage the yarns, and means on theinterruption of said needle movement to effect relative lateral bodilymovement between the yarns and the needles to wrap the yarns around theneedles.

36. In a tubethreading machine, a tube frame support, a series of pusherneedles, means for holding the yarn ends distended between the needlesand the side of the tube relative lateral bodily threadengagingmovementbetween the needles and the yarns when the needle movement isinterrupted to insure better engagement of the yarn by the needles,andmeans for stripping the yarns;

from the needles beyond the small ends of the tubes.

37. In a tube'threadingmachine, a tube frame support, means for holdingthe tuft yarns in position to be threaded, a series of needles, meansfor causing relative movement between the needles and the tubestransversely the yarns to thread the latter simultaneously through thetubes, and means for imparting a lateral yarn engaging bodily movementto the needles.

38. In a machine of the land described, means for holding a loom tubeframe in position to be threaded with the tubes vertical and the largeends of the tubes upward, means for holding the yarn ends above thetubes in position to be threaded, a vertically moving needle carrierabove the yarn ends and needles mounted in said carrier, and means foractuating the carrier to operate the needles to engage and thread theyarn ends through the tubes on the downward movement of the carrier andwithdraw the needles on the upward movement of the carmen 39. In amachine of the kind described, means for holding a loom tube frame inposition to be threaded with the tubes vertical and the large ends ofthe tubes upward, means for holding the yarn ends above the tubes inposition to be threaded, a vertically moving needle carrier above theyarn ends, and needles mounted in said carrier, means for actuating thecarrier to operate the needles to engage and thread the yarn endsthrough the tubes on the downward movement of the carrier and withdrawthe needles on the upward movement of the carrier, and means for combingor brushing out the ends of the yarn after threading.

40. In a machine of the kind described, means for holding a loom tubeframe in position to be threaded with the tubes vertical and the largeends of the tubes upward, means for holding the yarn ends above thetubes in position to be threaded, a vertically moving needle carrierabove the yarn ends and needles mounted in said carrier, means foractuating the carrier to operate the needles to engage and thread theyarn ends through the tubes on the downward movement of the carrier andwithdraw the needles on the upward movement of the carrier, and meansfor trimming the yarn ends after they are combed or brushed out.

41. In a machine of the kind described, means for holding a loom tubeframe in position to be threaded with the tubes vertical and the largeends of the tubes upward, means for holding the yarn ends above thetubes in position to be threaded, a vertically moving needle carrierabove the yarn ends and needles mounted in said carrier, means foractuating the carrier to operate the needles to engage and thread theyarn ends through the tubes on the downward movement of the carrier andwithdraw the needles on the upward movement of the carrier, and meansfor causing a relative bodily sidewise movement between the needles andyarns prior to threading to insure better engagement of the yarns by theneedles, and means for stripping the yarns from the needles after theyhave been threaded through the tubes.

In testimony whereof, I have" hereunto set my hand, in the presence oftwo subscribing witnesses.

EUGENE TYMESON.

Witnesses:

C. J. SAWYER, J. A. GRAVES.

